An algebraic structure                    is called a semigroup.

Related MCQs

• A non empty set A is termed as an algebraic structure                  
• Two sets are called disjoint if there _____________ is the empty set.
• The compound propositions p and q are called logically equivalent if                  is a tautology.
• Any subset of edges that connects all the vertices and has minimum total weight, if all the edge weights of an undirected graph are positive is called                
• The problem of finding a path in a graph that visits every vertex exactly once is called?
• A monoid is called a group if                
• A function is defined by f(x)=2x and f(x + y) = f(x) + f(y) is called                            
• An isomorphism of a group onto itself is called                          
• A set of representatives of all the cosets is called                    
• If every two elements of a poset are comparable then the poset is called